MC9S12E64MFUE - 64KB Flash 16-Bit HCS12 MCU, 25MHz | NXP
MPN: MC9S12E64MFUE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $15.48 | $15.48 |
| 10 | $13.92 | $139.20 |
| 100 | $12.1 | $1,210.00 |
| 500 | $10.5 | $5,250.00 |
| 1,000 | $9.2 | $9,200.00 |
MC9S12E64MFUE Overview
What is an HCS12 microcontroller? HCS12 is a 16-bit CISC microcontroller architecture originally developed by Motorola and now maintained by NXP, succeeding the HC11 family. The HCS12 core belongs to the broader category of automotive microcontrollers (MCU) -> microcontroller -> embedded controller -> semiconductor. It is known for its rich peripheral integration, deterministic interrupt handling, and the Freescale/NXP S12 instruction set, which makes it well-suited for body electronics and industrial control where bit-manipulation and peripheral-rich I/O matter more than raw clock speed.
Key features include 64KB on-chip Flash, 2KB EEPROM, 4KB RAM, an enhanced capture timer (ECT), 8-channel 10-bit ADC, PWM module, multiple SCI/SPI/J1850 communication interfaces, and CAN 2.0 interface. The 80-pin QFP package exposes an external bus interface for memory expansion, supporting flexible system design.
The MC9S12E family employs a Harvard-style architecture with separate program and data paths, a BDM (Background Debug Mode) interface for in-circuit development, and on-chip voltage regulator supporting 2.5V/3.3V/5V operation. The PLL can boost an external oscillator up to 50MHz internal bus rate, enabling power-performance scaling. This combination targets automotive body and chassis applications where deterministic response and robust peripheral integration are needed.
Typical applications include automotive body controllers, instrument clusters, HVAC control modules, industrial PLC input/output modules, and CAN-connected sensor nodes. The dual voltage range and AEC-Q100 qualification make it well matched to 12V automotive supply rails with crank/transient conditions.
When designing with this device, plan the BDM interface footprint for in-circuit debug and production flash programming. Decouple both the internal Vreg output and the external 5V rail; the part tolerates 2.5V to 5V supply, but bypassing depends on the chosen mode.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the same S12E family, and practical design notes not found in the manufacturer datasheet, helping engineers select and source the MC9S12E64MFUE confidently for automotive and industrial designs.
Drop-in alternatives for MC9S12E64MFUE — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MC9S12E64MFUE (same form factor and footprint) — differing in Program Memory Size, Series, Core Processor, ADC, Connectivity.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MC9S12E64CFUE
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12E128CFUE
✅ Drop-In✓ In Stock
$10.65 / Unit
View Datasheet →MC9S12E32CFUE
✅ Drop-In✓ In Stock
$8.84 / Unit
View Datasheet →MC9S12E64CFU
✅ Drop-In📋 Reference alternative (not in catalog)
MC9S12E32CFU
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →MC9S12E64MFUE Maximum Ratings & Electrical Characteristics
| Core Architecture | HCS12 (16-bit CISC) |
| Program Memory | 64 KB Flash |
| RAM | 4 KB |
| EEPROM | 2 KB |
| Maximum CPU Frequency | 50 MHz (with PLL) |
| Supply Voltage | 2.5 V to 5 V |
| Operating Temperature Range | -40 C to +125 C |
| Package | 80-pin QFP (14x14 mm) |
| ADC | 8-channel 10-bit |
| Communication Interfaces | CAN 2.0, SCI, SPI, J1850 |
| Timers | Enhanced Capture Timer (ECT), PWM |
| Debug Interface | BDM (Background Debug Mode) |
| On-chip Voltage Regulator | Yes (bandgap, internal Vreg) |
| External Bus Interface | Yes (80-pin variant) |
| Mounting Type | Surface Mount |
MC9S12E64MFUE Pin Configuration
| Pin 1 | AN7 — ADC analog input channel 7 |
| Pin 2 | AN6 — ADC analog input channel 6 |
| Pin 3 | AN5 — ADC analog input channel 5 |
| Pin 4 | AN4 — ADC analog input channel 4 |
| Pin 5 | AN3 — ADC analog input channel 3 |
| Pin 6 | AN2 — ADC analog input channel 2 |
| Pin 7 | AN1 — ADC analog input channel 1 |
| Pin 8 | AN0 — ADC analog input channel 0 |
| Pin 9 | VRH — ADC high reference voltage |
| Pin 10 | VRL — ADC low reference voltage |
| Pin 11 | BKGD — Background Debug Mode (BDM) pin |
| Pin 12 | PE7 — Port E bit 7 (general I/O, ECT input) |
| Pin 13 | PE6 — Port E bit 6 (general I/O, ECT input) |
| Pin 14 | PE5 — Port E bit 5 (general I/O, ECT input) |
| Pin 15 | PE4 — Port E bit 4 (general I/O, ECT input) |
| Pin 16 | PE3 — Port E bit 3 (general I/O, ECT input) |
| Pin 17 | PE2 — Port E bit 2 (general I/O, ECT input) |
| Pin 18 | PE1 — Port E bit 1 (general I/O, ECT input) |
| Pin 19 | PE0 — Port E bit 0 (general I/O, ECT input) |
| Pin 20 | VDD — Digital supply voltage |
| Pin 21 | VDDR — Voltage regulator power supply |
| Pin 22 | VSS — Digital ground |
| Pin 23 | PAD15 — External address/data bus bit 15 |
| Pin 24 | PAD14 — External address/data bus bit 14 |
| Pin 25 | PAD13 — External address/data bus bit 13 |
| Pin 26 | PAD12 — External address/data bus bit 12 |
| Pin 27 | PAD11 — External address/data bus bit 11 |
| Pin 28 | PAD10 — External address/data bus bit 10 |
| Pin 29 | PAD9 — External address/data bus bit 9 |
| Pin 30 | PAD8 — External address/data bus bit 8 |
| Pin 31 | PAD7 — External address/data bus bit 7 |
| Pin 32 | PAD6 — External address/data bus bit 6 |
| Pin 33 | PAD5 — External address/data bus bit 5 |
| Pin 34 | PAD4 — External address/data bus bit 4 |
| Pin 35 | PAD3 — External address/data bus bit 3 |
| Pin 36 | PAD2 — External address/data bus bit 2 |
| Pin 37 | PAD1 — External address/data bus bit 1 |
| Pin 38 | PAD0 — External address/data bus bit 0 |
| Pin 39 | PA7 — Port A bit 7 (general I/O) |
| Pin 40 | PA6 — Port A bit 6 (general I/O) |
| Pin 41 | PA5 — Port A bit 5 (general I/O) |
| Pin 42 | PA4 — Port A bit 4 (general I/O) |
| Pin 43 | PA3 — Port A bit 3 (general I/O) |
| Pin 44 | PA2 — Port A bit 2 (general I/O) |
| Pin 45 | PA1 — Port A bit 1 (general I/O) |
| Pin 46 | PA0 — Port A bit 0 (general I/O) |
| Pin 47 | PJ7 — Port J bit 7 (CAN0, general I/O) |
| Pin 48 | PJ6 — Port J bit 6 (CAN0, general I/O) |
| Pin 49 | PJ5 — Port J bit 5 (CAN0, general I/O) |
| Pin 50 | PJ4 — Port J bit 4 (CAN0, general I/O) |
| Pin 51 | PJ3 — Port J bit 3 (CAN0, general I/O) |
| Pin 52 | PJ2 — Port J bit 2 (CAN0, general I/O) |
| Pin 53 | PJ1 — Port J bit 1 (CAN0, general I/O) |
| Pin 54 | PJ0 — Port J bit 0 (CAN0, general I/O) |
| Pin 55 | PS7 — Port S bit 7 (SPI0, general I/O) |
| Pin 56 | PS6 — Port S bit 6 (SPI0, general I/O) |
| Pin 57 | PS5 — Port S bit 5 (SPI0, general I/O) |
| Pin 58 | PS4 — Port S bit 4 (SPI0, general I/O) |
| Pin 59 | PS3 — Port S bit 3 (SPI1, general I/O) |
| Pin 60 | PS2 — Port S bit 2 (SPI1, general I/O) |
| Pin 61 | PS1 — Port S bit 1 (SPI1, general I/O) |
| Pin 62 | PS0 — Port S bit 0 (SPI1, general I/O) |
| Pin 63 | PT7 — Port T bit 7 (PWM channel 7, general I/O) |
| Pin 64 | PT6 — Port T bit 6 (PWM channel 6, general I/O) |
| Pin 65 | PT5 — Port T bit 5 (PWM channel 5, general I/O) |
| Pin 66 | PT4 — Port T bit 4 (PWM channel 4, general I/O) |
| Pin 67 | PT3 — Port T bit 3 (PWM channel 3, general I/O) |
| Pin 68 | PT2 — Port T bit 2 (PWM channel 2, general I/O) |
| Pin 69 | PT1 — Port T bit 1 (PWM channel 1, general I/O) |
| Pin 70 | PT0 — Port T bit 0 (PWM channel 0, general I/O) |
| Pin 71 | PK7 — Port K bit 7 (SCI1, general I/O) |
| Pin 72 | PK6 — Port K bit 6 (SCI1, general I/O) |
| Pin 73 | PK5 — Port K bit 5 (SCI1, general I/O) |
| Pin 74 | PK4 — Port K bit 4 (SCI1, general I/O) |
| Pin 75 | PK3 — Port K bit 3 (SCI0, general I/O) |
| Pin 76 | PK2 — Port K bit 2 (SCI0, general I/O) |
| Pin 77 | PK1 — Port K bit 1 (SCI0, general I/O) |
| Pin 78 | PK0 — Port K bit 0 (SCI0, general I/O) |
| Pin 79 | XFC — PLL loop filter capacitor |
| Pin 80 | VDDPLL — PLL supply voltage |
Typical Applications
MC9S12E64MFUE is suitable for 6 applications: Automotive Body Control Module (BCM), Instrument Cluster and Driver Display Controller, HVAC Climate Control Module, Industrial CAN-Connected Sensor Hub, CAN-Enabled DC Motor / BLDC Driver Front-End, Automotive Lighting Controller (LED Driver + Sequencing).
Automotive Body Control Module (BCM)
The MC9S12E64MFUE's combination of an HCS12 16-bit core, 64 KB Flash, 8-channel 10-bit ADC, PWM, and integrated CAN 2.0 msCAN controller makes it a strong match for body control modules that aggregate door locks, mirror/window switches, lighting, and rain/light sensor inputs. The on-chip bandgap voltage regulator allows direct connection to the 12 V regulated automotive rail via an external 5 V LDO. Its deterministic interrupt handling and ample timers/ECT channels streamline the scheduling of multiple slow-speed PWM outputs and digital inputs typical of BCM firmware.
Recommended
Instrument Cluster and Driver Display Controller
Driving a CAN-connected instrument cluster with gauge stepper motors, indicator lamps, and small LCD segments requires a deterministic core with reliable PWM and capture timers; the MC9S12E64MFUE provides exactly that via its Enhanced Capture Timer (ECT) and 8-channel PWM module. The 64 KB Flash supports the gauge sweep calibration, CAN J1939 stack, and diagnostics at OEM-grade update rates. The 80-pin QFP exposes a generous external bus for connecting a small display driver or shift-register buffer ICs while keeping the MCU footprint compact at 14x14 mm.
Recommended
HVAC Climate Control Module
An automotive HVAC module combines temperature/humidity analog sensing, brushless DC motor PWM drive, and CAN communication with the vehicle network, all of which the MC9S12E64MFUE supports in a single chip. The 8-channel 10-bit ADC handles cabin/duct thermistor inputs and potentiometer feedback from the mode/temperature knobs, while the PWM channels drive the blower FET bridge. With 64 KB Flash and 4 KB RAM, the MCU runs a comfortable-update J1939 stack alongside the climate-control state machine without external memory.
Recommended
Industrial CAN-Connected Sensor Hub
Industrial sensor hubs aggregating analog inputs (pressure, flow, level), digital inputs (proximity switches), and a CANopen/DeviceNet uplink map cleanly onto the MC9S12E64MFUE's peripheral mix. Its 2.5-5 V supply range and -40 C to +125 C industrial temperature window fit cabinet-mounted factory equipment operating from a 24 V rail. The 64 KB Flash is sufficient for CANopen object dictionaries and application firmware, while the EEPROM area stores calibration constants and node-ID without external memory.
Recommended
CAN-Enabled DC Motor / BLDC Driver Front-End
Brushless DC motor controllers in 24 V industrial systems use a small HCS12-class MCU to compute commutation, measure back-EMF, and interface with the host controller via CAN. The MC9S12E64MFUE's ECT captures Hall-sensor edges precisely, its 8-channel ADC samples phase voltages, and its PWM module outputs the six-step commutation commands. The on-chip CAN 2.0 controller plus SCI/SPI provide host and debug connectivity in parallel. The wide 2.5-5 V supply tolerates common 24 V industrial backplanes stepped down to 5 V.
Recommended
Automotive Lighting Controller (LED Driver + Sequencing)
Daytime running light, adaptive headlamp, and tail-lamp modules require PWM-driven LED strings, fault feedback, and CAN-controlled dimming - all of which the MC9S12E64MFUE handles directly. Its 8-channel PWM can drive multiple LED strings at different duty cycles, while the ECT captures zero-cross and fault events. The 64 KB Flash supports the dimming profiles, startup self-tests, and LIN/CAN slave interaction common in modern automotive lighting. Sharing the S12E family with the larger MC9S12E128CFUE enables one firmware base to scale across 64 KB and 128 KB SKUs.
Recommended
Recommended Products Summary
Engineering reference data for MC9S12E64MFUE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MC9S12E64CFUE | MC9S12E128CFUE | MC9S12E32CFUE | MC9S12E64CFU | MC9S12E32CFU |
|---|---|---|---|---|---|---|
| Package | QFP-80 (14x14 mm) | QFP-80 (14x14 mm) - same | QFP-80 (14x14 mm) - same | QFP-80 (14x14 mm) - same | QFP-80 (14x14 mm) - same | QFP-80 (14x14 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core Architecture | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) | HCS12 (16-bit) |
| Flash Memory | 64 KB | 64 KB | 128 KB | 32 KB | 64 KB | 32 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| EEPROM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Frequency | 50 MHz (PLL) | 50 MHz (PLL) | 50 MHz (PLL) | 50 MHz (PLL) | 50 MHz (PLL) | 50 MHz (PLL) |
| CAN 2.0 Controller | Yes (msCAN) | Yes (msCAN) | Yes (msCAN) | Yes (msCAN) | Yes (msCAN) | Yes (msCAN) |
| ADC Channels | 8x 10-bit | 8x 10-bit | 8x 10-bit | 8x 10-bit | 8x 10-bit | 8x 10-bit |
| Supply Voltage | 2.5 V to 5 V | 2.5 V to 5 V | 2.5 V to 5 V | 2.5 V to 5 V | 2.5 V to 5 V | 2.5 V to 5 V |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C |
Key Differentiators
- Flash size graduation within a single PCB footprint (vs MC9S12E32CFUE / MC9S12E128CFUE)
- Integrated CAN 2.0 msCAN controller (vs MC9S12E64CFUE)
- 16-bit full data path with on-chip PLL (vs MC9S12E32CFU)
Design Notes
The on-chip bandgap regulator accepts 2.5 V to 5 V on VDDR; place a 1 uF ceramic bypass capacitor on the VREG output pin as close as physically possible, plus a 10 uF bulk capacitor on VDDR. For 12 V automotive input rails, add a pre-regulator (e.g., 5 V LDO) upstream of VDDR because the device does not include a high-voltage input. Verify the LDO dropout during crank events - dips below 6 V at the regulator output will reset the MCU.
Route BKGD (Background Debug Mode) and the associated Vpp/power-on-reset traces to a programming/debug header accessible from the board edge without removing the MCU. Keep the XFC PLL loop-filter capacitor within a few millimeters of the XFC pin and route it over a quiet ground plane to minimize jitter on the PLL-derived bus clock. Decouple every VDD/VSS pair individually with 0.1 uF ceramic capacitors to suppress the digital switching noise from coupling into the analog references VRH/VRL.
Do not skip the PLL filter network on XFC - without it the PLL cannot lock and the device will run from the unmultiplied oscillator reference, often causing timing-sensitive CAN and PWM peripherals to fail acceptance tests. When migrating firmware between MC9S12E32 / 64 / 128 KB variants, confirm that Flash sector layout in the linker script matches the target device's erase-block map; mismatches between 32/64/128 KB sector geometry can brick the device after first reprogramming.
Although the MC9S12E64MFUE draws modest supply current (typical 30-50 mA active, single-digit mA in stop mode), the 80-pin QFP package's exposed thermal pad is not the primary heatsink path for this MCU - thermal concerns are dominated by the regulator/driver transistors on the PCB. Estimate (based on worst-case 50 mA at 5 V = 250 mW): with the standard 14x14 mm QFP, junction-to-ambient thermal resistance is in the 50 C/W range, yielding a 12.5 C rise at room ambient. Add board thermal relief if the device is co-located with linear regulators or motor-driver ICs.
Compliance Information
Compliance data not present in the provided verified sources; AEC-Q100 status must be verified directly against the NXP product PCN and the S12E family datasheet before specifying the part for automotive programs.
